Linking dependencies is taking a long time

[alepee]

Ref: #1496

Even with recent yarn version, and on various system, yarn is taking a very long time to link dependencies. This performance issue has been reported, but the issue has been closed by maintainer and not reopen since then.

This is a serious issue for lot of users, and should be at least answered.

[wilo087]

Any solution about this issue?

[alepee]

As far as I know, no 😞 We observed within a docker environment (node:10-alpine on docker4mac, docker-machine/xhyve and docker on linux host).

[ACoolmanBigHealth]

Yes I would also like to at least the knobs I can turn to speed this up

[thiefjim]

yarn v1.17.3
node v10.16.3
npm 6.9.0

Windows

I have tried to put my App project folder location at the same disk section as yarn cache dir.
yarn cache dir -> C:\Users<YOUR USERNAME>\AppData\Local\Yarn\Cache\v4

The result:
old location -> D:\myApp Done in 747.17s.
new location -> C:\myApp Done in 488.97s.

C and D are the same physical disk.

Mac

However Mac is faster than Windows Done in 121.37s

I think the bottleneck is the disk read/write speed?

[alepee]

Switching back from yarn to npm divided our install time by 3 within an Linux/Docker environment.

[Cally99]

I'm switching back too. Yarn has far too many bugs and stupid things that takes so long to workout